Dear Rai,
Thank you for your query. Unfortunately, the hosting providers you mentioned seem unresponsive currently. I'd suggest exploring other reputable Ragnarok server hosting services that offer comprehensive setup and management solutions, including custom client/installer creation.
While proximity voice chat is not standard in Ragnarok, there may be third-party integrations to enable this. Please let me know if you need further assistance in finding the right hosting for your project.